2 * Copyright (c) 2015 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #include <vnet/vnet.h>
16 #include <vppinfra/vec.h>
17 #include <vppinfra/error.h>
18 #include <vppinfra/format.h>
19 #include <vppinfra/bitmap.h>
20 #include <vppinfra/linux/sysfs.h>
21 #include <vlib/unix/unix.h>
23 #include <vnet/ethernet/ethernet.h>
24 #include <dpdk/device/dpdk.h>
25 #include <vlib/pci/pci.h>
33 #include <sys/mount.h>
37 #include <dpdk/device/dpdk_priv.h>
39 dpdk_main_t dpdk_main;
40 dpdk_config_main_t dpdk_config_main;
42 #define LINK_STATE_ELOGS 0
44 /* Port configuration, mildly modified Intel app values */
46 static struct rte_eth_conf port_conf_template = {
49 .header_split = 0, /**< Header Split disabled */
50 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
51 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
52 .hw_strip_crc = 0, /**< CRC stripped by hardware */
55 .mq_mode = ETH_MQ_TX_NONE,
59 static dpdk_port_type_t
60 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
63 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
64 return VNET_DPDK_PORT_TYPE_ETH_100G;
65 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
66 return VNET_DPDK_PORT_TYPE_ETH_50G;
67 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
68 return VNET_DPDK_PORT_TYPE_ETH_40G;
69 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
70 return VNET_DPDK_PORT_TYPE_ETH_25G;
71 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
72 return VNET_DPDK_PORT_TYPE_ETH_10G;
73 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
74 return VNET_DPDK_PORT_TYPE_ETH_1G;
76 return VNET_DPDK_PORT_TYPE_UNKNOWN;
81 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
83 dpdk_main_t *dm = &dpdk_main;
84 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
87 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
89 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
91 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
92 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
94 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
96 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
98 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
99 rte_eth_promiscuous_enable (xd->device_index);
101 rte_eth_promiscuous_disable (xd->device_index);
104 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
108 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
110 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
111 dpdk_device_stop (xd);
113 rv = rte_eth_dev_configure
114 (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf);
117 vlib_cli_output (vlib_get_main (),
118 "rte_eth_dev_configure[%d]: err %d",
119 xd->device_index, rv);
121 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
123 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
124 dpdk_device_start (xd);
131 dpdk_device_lock_init (dpdk_device_t * xd)
134 vec_validate (xd->lockp, xd->tx_q_used - 1);
135 for (q = 0; q < xd->tx_q_used; q++)
137 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
138 CLIB_CACHE_LINE_BYTES);
139 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
143 static struct rte_mempool_ops *
144 get_ops_by_name (i8 * ops_name)
148 for (i = 0; i < rte_mempool_ops_table.num_ops; i++)
150 if (!strcmp (ops_name, rte_mempool_ops_table.ops[i].name))
151 return &rte_mempool_ops_table.ops[i];
158 dpdk_ring_alloc (struct rte_mempool *mp)
160 u32 rg_flags = 0, count;
162 i8 rg_name[RTE_RING_NAMESIZE];
165 ret = snprintf (rg_name, sizeof (rg_name), RTE_MEMPOOL_MZ_FORMAT, mp->name);
166 if (ret < 0 || ret >= (i32) sizeof (rg_name))
167 return -ENAMETOOLONG;
170 if (mp->flags & MEMPOOL_F_SP_PUT)
171 rg_flags |= RING_F_SP_ENQ;
172 if (mp->flags & MEMPOOL_F_SC_GET)
173 rg_flags |= RING_F_SC_DEQ;
175 count = rte_align32pow2 (mp->size + 1);
177 * Allocate the ring that will be used to store objects.
178 * Ring functions will return appropriate errors if we are
179 * running as a secondary process etc., so no checks made
180 * in this function for that condition.
182 /* XXX can we get memory from the right socket? */
183 r = clib_mem_alloc_aligned (rte_ring_get_memsize (count),
184 CLIB_CACHE_LINE_BYTES);
186 /* XXX rte_ring_lookup will not work */
188 ret = rte_ring_init (r, rg_name, count, rg_flags);
197 static clib_error_t *
198 dpdk_lib_init (dpdk_main_t * dm)
204 vlib_main_t *vm = vlib_get_main ();
205 vlib_thread_main_t *tm = vlib_get_thread_main ();
206 vnet_device_main_t *vdm = &vnet_device_main;
207 vnet_sw_interface_t *sw;
208 vnet_hw_interface_t *hi;
210 vlib_pci_addr_t last_pci_addr;
211 u32 last_pci_addr_port = 0;
212 vlib_thread_registration_t *tr_hqos;
215 u32 next_hqos_cpu = 0;
216 u8 af_packet_port_id = 0;
217 u8 bond_ether_port_id = 0;
218 last_pci_addr.as_u32 = ~0;
220 dm->hqos_cpu_first_index = 0;
221 dm->hqos_cpu_count = 0;
223 /* find out which cpus will be used for I/O TX */
224 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
225 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
227 if (tr_hqos && tr_hqos->count > 0)
229 dm->hqos_cpu_first_index = tr_hqos->first_index;
230 dm->hqos_cpu_count = tr_hqos->count;
233 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
234 CLIB_CACHE_LINE_BYTES);
236 nports = rte_eth_dev_count ();
239 clib_warning ("DPDK drivers found no ports...");
243 clib_warning ("DPDK drivers found %d ports...", nports);
246 * All buffers are all allocated from the same rte_mempool.
247 * Thus they all have the same number of data bytes.
249 dm->vlib_buffer_free_list_index =
250 vlib_buffer_get_or_create_free_list (vm,
251 VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
254 if (dm->conf->enable_tcp_udp_checksum)
255 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
256 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
258 /* vlib_buffer_t template */
259 vec_validate_aligned (dm->buffer_templates, tm->n_vlib_mains - 1,
260 CLIB_CACHE_LINE_BYTES);
261 for (i = 0; i < tm->n_vlib_mains; i++)
263 vlib_buffer_free_list_t *fl;
264 vlib_buffer_t *bt = vec_elt_at_index (dm->buffer_templates, i);
265 fl = vlib_buffer_get_free_list (vm,
266 VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
267 vlib_buffer_init_for_free_list (bt, fl);
268 bt->flags = dm->buffer_flags_template;
269 bt->current_data = -RTE_PKTMBUF_HEADROOM;
270 vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0;
273 for (i = 0; i < nports; i++)
278 struct rte_eth_dev_info dev_info;
279 struct rte_eth_link l;
280 dpdk_device_config_t *devconf = 0;
281 vlib_pci_addr_t pci_addr;
284 rte_eth_dev_info_get (i, &dev_info);
285 if (dev_info.pci_dev) /* bonded interface has no pci info */
287 pci_addr.domain = dev_info.pci_dev->addr.domain;
288 pci_addr.bus = dev_info.pci_dev->addr.bus;
289 pci_addr.slot = dev_info.pci_dev->addr.devid;
290 pci_addr.function = dev_info.pci_dev->addr.function;
292 hash_get (dm->conf->device_config_index_by_pci_addr,
297 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
299 devconf = &dm->conf->default_devconf;
301 /* Create vnet interface */
302 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
303 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
304 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
305 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
307 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
308 if (dev_info.pci_dev)
310 struct rte_eth_dev_info di = { 0 };
311 rte_eth_dev_info_get (i + 1, &di);
312 if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
313 memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
314 sizeof (struct rte_pci_addr)) == 0)
316 xd->interface_name_suffix = format (0, "0");
317 last_pci_addr.as_u32 = pci_addr.as_u32;
318 last_pci_addr_port = i;
320 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
322 xd->interface_name_suffix =
323 format (0, "%u", i - last_pci_addr_port);
327 last_pci_addr.as_u32 = ~0;
331 last_pci_addr.as_u32 = ~0;
333 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
334 sizeof (struct rte_eth_txconf));
335 if (dm->conf->no_multi_seg)
337 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
338 port_conf_template.rxmode.jumbo_frame = 0;
339 port_conf_template.rxmode.enable_scatter = 0;
343 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
344 port_conf_template.rxmode.jumbo_frame = 1;
345 port_conf_template.rxmode.enable_scatter = 1;
346 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
349 clib_memcpy (&xd->port_conf, &port_conf_template,
350 sizeof (struct rte_eth_conf));
352 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
354 if (devconf->num_tx_queues > 0
355 && devconf->num_tx_queues < xd->tx_q_used)
356 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
358 if (devconf->num_rx_queues > 1 && dm->use_rss == 0)
363 if (devconf->num_rx_queues > 1
364 && dev_info.max_rx_queues >= devconf->num_rx_queues)
366 xd->rx_q_used = devconf->num_rx_queues;
367 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
368 if (devconf->rss_fn == 0)
369 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
370 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
372 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
377 xd->flags |= DPDK_DEVICE_FLAG_PMD;
379 /* workaround for drivers not setting driver_name */
380 if ((!dev_info.driver_name) && (dev_info.pci_dev))
381 dev_info.driver_name = dev_info.pci_dev->driver->driver.name;
383 ASSERT (dev_info.driver_name);
389 #define _(s,f) else if (dev_info.driver_name && \
390 !strcmp(dev_info.driver_name, s)) \
391 xd->pmd = VNET_DPDK_PMD_##f;
397 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
399 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
400 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
401 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
405 /* Drivers with valid speed_capa set */
406 case VNET_DPDK_PMD_E1000EM:
407 case VNET_DPDK_PMD_IGB:
408 case VNET_DPDK_PMD_IXGBE:
409 case VNET_DPDK_PMD_I40E:
410 xd->port_type = port_type_from_speed_capa (&dev_info);
411 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
412 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
415 case VNET_DPDK_PMD_CXGBE:
416 case VNET_DPDK_PMD_MLX4:
417 case VNET_DPDK_PMD_MLX5:
418 xd->port_type = port_type_from_speed_capa (&dev_info);
422 case VNET_DPDK_PMD_IGBVF:
423 case VNET_DPDK_PMD_IXGBEVF:
424 case VNET_DPDK_PMD_I40EVF:
425 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
426 xd->port_conf.rxmode.hw_strip_crc = 1;
429 case VNET_DPDK_PMD_THUNDERX:
430 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
431 xd->port_conf.rxmode.hw_strip_crc = 1;
434 case VNET_DPDK_PMD_DPAA2:
435 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
439 case VNET_DPDK_PMD_ENIC:
440 rte_eth_link_get_nowait (i, &l);
441 if (l.link_speed == 40000)
442 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
444 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
447 /* Intel Red Rock Canyon */
448 case VNET_DPDK_PMD_FM10K:
449 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
450 xd->port_conf.rxmode.hw_strip_crc = 1;
454 case VNET_DPDK_PMD_VIRTIO:
455 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
456 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
457 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
461 case VNET_DPDK_PMD_VMXNET3:
462 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
463 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
466 case VNET_DPDK_PMD_AF_PACKET:
467 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
468 xd->port_id = af_packet_port_id++;
471 case VNET_DPDK_PMD_BOND:
472 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
473 xd->port_id = bond_ether_port_id++;
476 case VNET_DPDK_PMD_VIRTIO_USER:
477 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
481 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
484 if (devconf->num_rx_desc)
485 xd->nb_rx_desc = devconf->num_rx_desc;
487 if (devconf->num_tx_desc)
488 xd->nb_tx_desc = devconf->num_tx_desc;
492 * Ensure default mtu is not > the mtu read from the hardware.
493 * Otherwise rte_eth_dev_configure() will fail and the port will
496 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
499 * This device does not support the platforms's max frame
500 * size. Use it's advertised mru instead.
502 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
506 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
509 * Some platforms do not account for Ethernet FCS (4 bytes) in
510 * MTU calculations. To interop with them increase mru but only
511 * if the device's settings can support it.
513 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
514 xd->port_conf.rxmode.hw_strip_crc)
517 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
518 * stripped by h/w and so will not consume any buffer memory.
520 xd->port_conf.rxmode.max_rx_pkt_len += 4;
524 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
526 f64 now = vlib_time_now (vm);
528 rnd = (u32) (now * 1e6);
529 rnd = random_u32 (&rnd);
530 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
535 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
537 if (xd->tx_q_used < tm->n_vlib_mains)
538 dpdk_device_lock_init (xd);
540 xd->device_index = xd - dm->devices;
541 ASSERT (i == xd->device_index);
542 xd->per_interface_next_index = ~0;
544 /* assign interface to input thread */
545 dpdk_device_and_queue_t *dq;
548 if (devconf->hqos_enabled)
550 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
552 if (devconf->hqos.hqos_thread_valid)
554 int cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
556 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
557 return clib_error_return (0, "invalid HQoS thread index");
559 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
560 dq->device = xd->device_index;
565 int cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
567 if (dm->hqos_cpu_count == 0)
568 return clib_error_return (0, "no HQoS threads available");
570 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
571 dq->device = xd->device_index;
575 if (next_hqos_cpu == dm->hqos_cpu_count)
578 devconf->hqos.hqos_thread_valid = 1;
579 devconf->hqos.hqos_thread = cpu;
583 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
584 CLIB_CACHE_LINE_BYTES);
585 for (j = 0; j < tm->n_vlib_mains; j++)
587 vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
588 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
589 vec_reset_length (xd->tx_vectors[j]);
592 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
593 CLIB_CACHE_LINE_BYTES);
594 for (j = 0; j < xd->rx_q_used; j++)
596 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
597 CLIB_CACHE_LINE_BYTES);
598 vec_reset_length (xd->rx_vectors[j]);
601 vec_validate_aligned (xd->d_trace_buffers, tm->n_vlib_mains,
602 CLIB_CACHE_LINE_BYTES);
605 /* count the number of descriptors used for this device */
606 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
608 error = ethernet_register_interface
609 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
610 /* ethernet address */ addr,
611 &xd->hw_if_index, dpdk_flag_change);
615 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
616 xd->vlib_sw_if_index = sw->sw_if_index;
617 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
618 dpdk_input_node.index);
620 if (devconf->workers)
625 clib_bitmap_foreach (i, devconf->workers, ({
626 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
627 vdm->first_worker_thread_index + i);
632 for (q = 0; q < xd->rx_q_used; q++)
634 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
638 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
640 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD)
641 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
643 dpdk_device_setup (xd);
645 if (vec_len (xd->errors))
646 clib_warning ("setup failed for device %U. Errors:\n %U",
647 format_dpdk_device_name, i,
648 format_dpdk_device_errors, xd);
650 if (devconf->hqos_enabled)
653 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
659 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
660 * specified otherwise in the startup config.
661 * For other NICs default to VLAN strip disabled, unless specified
662 * otherwis in the startup config.
664 if (xd->pmd == VNET_DPDK_PMD_ENIC)
666 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
667 vlan_strip = 1; /* remove vlan tag from VIC port by default */
669 clib_warning ("VLAN strip disabled for interface\n");
671 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
677 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
678 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
679 xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
680 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
681 clib_warning ("VLAN strip enabled for interface\n");
683 clib_warning ("VLAN strip cannot be supported by interface\n");
686 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
687 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
689 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
692 if (nb_desc > dm->conf->num_mbufs)
693 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
694 dm->conf->num_mbufs, nb_desc);
700 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
702 vlib_pci_main_t *pm = &pci_main;
704 vlib_pci_device_t *d;
706 int num_whitelisted = vec_len (conf->dev_confs);
709 pool_foreach (d, pm->pci_devs, ({
710 dpdk_device_config_t * devconf = 0;
711 vec_reset_length (pci_addr);
712 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
714 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
719 uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
724 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
728 if (d->vendor_id == 0x1af4 && d->device_id == 0x1000)
731 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
733 /* all Intel network devices */
734 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
736 /* all Intel QAT devices VFs */
737 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
738 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
741 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
744 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
747 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
753 clib_warning ("Unsupported PCI device 0x%04x:0x%04x found "
754 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
759 error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
765 pool_get (conf->dev_confs, devconf);
766 hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
767 devconf - conf->dev_confs);
768 devconf->pci_addr.as_u32 = d->bus_address.as_u32;
770 devconf->is_blacklisted = 1;
771 clib_error_report (error);
778 static clib_error_t *
779 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
780 unformat_input_t * input, u8 is_default)
782 clib_error_t *error = 0;
784 dpdk_device_config_t *devconf;
785 unformat_input_t sub_input;
789 devconf = &conf->default_devconf;
793 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
797 pool_get (conf->dev_confs, devconf);
798 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
799 devconf - conf->dev_confs);
802 return clib_error_return (0,
803 "duplicate configuration for PCI address %U",
804 format_vlib_pci_addr, &pci_addr);
807 devconf->pci_addr.as_u32 = pci_addr.as_u32;
808 devconf->hqos_enabled = 0;
809 dpdk_device_config_hqos_default (&devconf->hqos);
814 unformat_skip_white_space (input);
815 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
817 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
819 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
821 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
823 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
825 else if (unformat (input, "workers %U", unformat_bitmap_list,
830 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
832 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
836 else if (unformat (input, "vlan-strip-offload off"))
837 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
838 else if (unformat (input, "vlan-strip-offload on"))
839 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
842 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
844 devconf->hqos_enabled = 1;
845 error = unformat_hqos (&sub_input, &devconf->hqos);
849 else if (unformat (input, "hqos"))
851 devconf->hqos_enabled = 1;
855 error = clib_error_return (0, "unknown input `%U'",
856 format_unformat_error, input);
864 if (devconf->workers && devconf->num_rx_queues == 0)
865 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
866 else if (devconf->workers &&
867 clib_bitmap_count_set_bits (devconf->workers) !=
868 devconf->num_rx_queues)
870 clib_error_return (0,
871 "%U: number of worker threadds must be "
872 "equal to number of rx queues", format_vlib_pci_addr,
878 static clib_error_t *
879 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
881 clib_error_t *error = 0;
882 dpdk_main_t *dm = &dpdk_main;
883 dpdk_config_main_t *conf = &dpdk_config_main;
884 vlib_thread_main_t *tm = vlib_get_thread_main ();
885 dpdk_device_config_t *devconf;
886 vlib_pci_addr_t pci_addr;
887 unformat_input_t sub_input;
890 u8 *rte_cmd = 0, *ethname = 0;
893 int num_whitelisted = 0;
899 u8 *huge_dir_path = 0;
902 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
904 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
905 log_level = RTE_LOG_NOTICE;
907 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
910 if (unformat (input, "no-hugetlb"))
912 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
916 else if (unformat (input, "enable-tcp-udp-checksum"))
917 conf->enable_tcp_udp_checksum = 1;
919 else if (unformat (input, "decimal-interface-names"))
920 conf->interface_name_format_decimal = 1;
922 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
925 else if (unformat (input, "no-multi-seg"))
926 conf->no_multi_seg = 1;
928 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
932 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
940 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
941 unformat_vlib_cli_sub_input, &sub_input))
943 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
950 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
952 error = dpdk_device_config (conf, pci_addr, 0, 0);
959 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
961 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
963 else if (unformat (input, "socket-mem %s", &socket_mem))
965 else if (unformat (input, "no-pci"))
968 tmp = format (0, "--no-pci%c", 0);
969 vec_add1 (conf->eal_init_args, tmp);
971 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep_usec))
975 else if (unformat(input, #a)) \
977 tmp = format (0, "--%s%c", #a, 0); \
978 vec_add1 (conf->eal_init_args, tmp); \
980 foreach_eal_double_hyphen_predicate_arg
983 else if (unformat(input, #a " %s", &s)) \
985 if (!strncmp(#a, "huge-dir", 8)) \
987 else if (!strncmp(#a, "file-prefix", 11)) \
989 tmp = format (0, "--%s%c", #a, 0); \
990 vec_add1 (conf->eal_init_args, tmp); \
992 if (!strncmp(#a, "vdev", 4)) \
993 if (strstr((char*)s, "af_packet")) \
994 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
995 vec_add1 (conf->eal_init_args, s); \
997 foreach_eal_double_hyphen_arg
1000 else if (unformat(input, #a " %s", &s)) \
1002 tmp = format (0, "-%s%c", #b, 0); \
1003 vec_add1 (conf->eal_init_args, tmp); \
1005 vec_add1 (conf->eal_init_args, s); \
1007 foreach_eal_single_hyphen_arg
1010 else if (unformat(input, #a " %s", &s)) \
1012 tmp = format (0, "-%s%c", #b, 0); \
1013 vec_add1 (conf->eal_init_args, tmp); \
1015 vec_add1 (conf->eal_init_args, s); \
1016 conf->a##_set_manually = 1; \
1018 foreach_eal_single_hyphen_mandatory_arg
1020 else if (unformat (input, "default"))
1023 else if (unformat_skip_white_space (input))
1027 error = clib_error_return (0, "unknown input `%U'",
1028 format_unformat_error, input);
1033 if (!conf->uio_driver_name)
1034 conf->uio_driver_name = format (0, "uio_pci_generic%c", 0);
1037 * Use 1G huge pages if available.
1039 if (!no_huge && !huge_dir)
1041 u32 x, *mem_by_socket = 0;
1045 umount ((char *) huge_dir_path);
1047 /* Process "socket-mem" parameter value */
1048 if (vec_len (socket_mem))
1050 unformat_input_t in;
1051 unformat_init_vector (&in, socket_mem);
1052 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
1054 if (unformat (&in, "%u,", &x))
1056 else if (unformat (&in, "%u", &x))
1058 else if (unformat (&in, ","))
1063 vec_add1 (mem_by_socket, x);
1065 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1066 unformat_free (&in);
1072 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1074 vec_validate(mem_by_socket, c);
1075 mem_by_socket[c] = 64; /* default per-socket mem */
1082 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1086 vec_validate(mem_by_socket, c);
1088 e = clib_sysfs_prealloc_hugepages(c, 2 << 10, mem_by_socket[c] / 2);
1090 clib_error_report (e);
1094 if (mem_by_socket == 0)
1096 error = clib_error_return (0, "mem_by_socket NULL");
1099 _vec_len (mem_by_socket) = c + 1;
1101 /* regenerate socket_mem string */
1102 vec_foreach_index (x, mem_by_socket)
1103 socket_mem = format (socket_mem, "%s%u",
1104 socket_mem ? "," : "", mem_by_socket[x]);
1105 socket_mem = format (socket_mem, "%c", 0);
1107 vec_free (mem_by_socket);
1109 error = vlib_unix_recursive_mkdir ((char *) huge_dir_path);
1115 rv = mount ("none", (char *) huge_dir_path, "hugetlbfs", 0, NULL);
1119 error = clib_error_return (0, "mount failed %d", errno);
1123 tmp = format (0, "--huge-dir%c", 0);
1124 vec_add1 (conf->eal_init_args, tmp);
1125 tmp = format (0, "%s%c", huge_dir_path, 0);
1126 vec_add1 (conf->eal_init_args, tmp);
1129 tmp = format (0, "--file-prefix%c", 0);
1130 vec_add1 (conf->eal_init_args, tmp);
1131 tmp = format (0, "vpp%c", 0);
1132 vec_add1 (conf->eal_init_args, tmp);
1142 /* I'll bet that -c and -n must be the first and second args... */
1143 if (!conf->coremask_set_manually)
1145 vlib_thread_registration_t *tr;
1146 uword *coremask = 0;
1149 /* main thread core */
1150 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1152 for (i = 0; i < vec_len (tm->registrations); i++)
1154 tr = tm->registrations[i];
1155 coremask = clib_bitmap_or (coremask, tr->coremask);
1158 vec_insert (conf->eal_init_args, 2, 1);
1159 conf->eal_init_args[1] = (u8 *) "-c";
1160 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1161 conf->eal_init_args[2] = tmp;
1162 clib_bitmap_free (coremask);
1165 if (!conf->nchannels_set_manually)
1167 vec_insert (conf->eal_init_args, 2, 3);
1168 conf->eal_init_args[3] = (u8 *) "-n";
1169 tmp = format (0, "%d", conf->nchannels);
1170 conf->eal_init_args[4] = tmp;
1173 if (no_pci == 0 && geteuid () == 0)
1174 dpdk_bind_devices_to_uio (conf);
1177 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1178 devconf->x = conf->default_devconf.x ;
1181 pool_foreach (devconf, conf->dev_confs, ({
1183 /* default per-device config items */
1184 foreach_dpdk_device_config_item
1186 /* add DPDK EAL whitelist/blacklist entry */
1187 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1189 tmp = format (0, "-w%c", 0);
1190 vec_add1 (conf->eal_init_args, tmp);
1191 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1192 vec_add1 (conf->eal_init_args, tmp);
1194 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1196 tmp = format (0, "-b%c", 0);
1197 vec_add1 (conf->eal_init_args, tmp);
1198 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1199 vec_add1 (conf->eal_init_args, tmp);
1206 /* set master-lcore */
1207 tmp = format (0, "--master-lcore%c", 0);
1208 vec_add1 (conf->eal_init_args, tmp);
1209 tmp = format (0, "%u%c", tm->main_lcore, 0);
1210 vec_add1 (conf->eal_init_args, tmp);
1212 /* set socket-mem */
1213 tmp = format (0, "--socket-mem%c", 0);
1214 vec_add1 (conf->eal_init_args, tmp);
1215 tmp = format (0, "%s%c", socket_mem, 0);
1216 vec_add1 (conf->eal_init_args, tmp);
1218 /* NULL terminate the "argv" vector, in case of stupidity */
1219 vec_add1 (conf->eal_init_args, 0);
1220 _vec_len (conf->eal_init_args) -= 1;
1222 /* Set up DPDK eal and packet mbuf pool early. */
1224 rte_log_set_global_level (log_level);
1226 vm = vlib_get_main ();
1228 /* make copy of args as rte_eal_init tends to mess up with arg array */
1229 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1230 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1231 conf->eal_init_args[i]);
1233 clib_warning ("EAL init args: %s", conf->eal_init_args_str);
1235 rte_eal_init (vec_len (conf->eal_init_args),
1236 (char **) conf->eal_init_args);
1238 /* lazy umount hugepages */
1239 umount2 ((char *) huge_dir_path, MNT_DETACH);
1240 rmdir ((char *) huge_dir_path);
1241 vec_free (huge_dir_path);
1244 return clib_error_return (0, "rte_eal_init returned %d", ret);
1246 /* Dump the physical memory layout prior to creating the mbuf_pool */
1247 fprintf (stdout, "DPDK physical memory layout:\n");
1248 rte_dump_physmem_layout (stdout);
1250 /* set custom ring memory allocator */
1252 struct rte_mempool_ops *ops = NULL;
1254 ops = get_ops_by_name ("ring_sp_sc");
1255 ops->alloc = dpdk_ring_alloc;
1257 ops = get_ops_by_name ("ring_mp_sc");
1258 ops->alloc = dpdk_ring_alloc;
1260 ops = get_ops_by_name ("ring_sp_mc");
1261 ops->alloc = dpdk_ring_alloc;
1263 ops = get_ops_by_name ("ring_mp_mc");
1264 ops->alloc = dpdk_ring_alloc;
1267 /* main thread 1st */
1268 error = dpdk_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1272 for (i = 0; i < RTE_MAX_LCORE; i++)
1274 error = dpdk_buffer_pool_create (vm, conf->num_mbufs,
1275 rte_lcore_to_socket_id (i));
1284 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1287 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1289 vnet_main_t *vnm = vnet_get_main ();
1290 struct rte_eth_link prev_link = xd->link;
1292 u8 hw_flags_chg = 0;
1294 /* only update link state for PMD interfaces */
1295 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1298 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1299 memset (&xd->link, 0, sizeof (xd->link));
1300 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1302 if (LINK_STATE_ELOGS)
1304 vlib_main_t *vm = vlib_get_main ();
1305 ELOG_TYPE_DECLARE (e) =
1308 "update-link-state: sw_if_index %d, admin_up %d,"
1309 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1318 ed = ELOG_DATA (&vm->elog_main, e);
1319 ed->sw_if_index = xd->vlib_sw_if_index;
1320 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1321 ed->old_link_state = (u8)
1322 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1323 ed->new_link_state = (u8) xd->link.link_status;
1326 if ((xd->flags & (DPDK_DEVICE_FLAG_ADMIN_UP | DPDK_DEVICE_FLAG_BOND_SLAVE))
1327 && ((xd->link.link_status != 0) ^
1328 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1331 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1334 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1337 switch (xd->link.link_duplex)
1339 case ETH_LINK_HALF_DUPLEX:
1340 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1342 case ETH_LINK_FULL_DUPLEX:
1343 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1349 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1352 switch (xd->link.link_speed)
1354 case ETH_SPEED_NUM_10M:
1355 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1357 case ETH_SPEED_NUM_100M:
1358 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1360 case ETH_SPEED_NUM_1G:
1361 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1363 case ETH_SPEED_NUM_10G:
1364 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1366 case ETH_SPEED_NUM_40G:
1367 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1372 clib_warning ("unknown link speed %d", xd->link.link_speed);
1378 if (LINK_STATE_ELOGS)
1380 vlib_main_t *vm = vlib_get_main ();
1382 ELOG_TYPE_DECLARE (e) =
1385 "update-link-state: sw_if_index %d, new flags %d",.format_args
1393 ed = ELOG_DATA (&vm->elog_main, e);
1394 ed->sw_if_index = xd->vlib_sw_if_index;
1395 ed->flags = hw_flags;
1397 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1402 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1404 clib_error_t *error;
1405 vnet_main_t *vnm = vnet_get_main ();
1406 dpdk_main_t *dm = &dpdk_main;
1407 ethernet_main_t *em = ðernet_main;
1409 vlib_thread_main_t *tm = vlib_get_thread_main ();
1412 error = dpdk_lib_init (dm);
1415 clib_error_report (error);
1417 tm->worker_thread_release = 1;
1419 f64 now = vlib_time_now (vm);
1420 vec_foreach (xd, dm->devices)
1422 dpdk_update_link_state (xd, now);
1427 * Extra set up for bond interfaces:
1428 * 1. Setup MACs for bond interfaces and their slave links which was set
1429 * in dpdk_device_setup() but needs to be done again here to take
1431 * 2. Set up info and register slave link state change callback handling.
1432 * 3. Set up info for bond interface related CLI support.
1434 int nports = rte_eth_dev_count ();
1437 for (i = 0; i < nports; i++)
1439 xd = &dm->devices[i];
1440 ASSERT (i == xd->device_index);
1441 if (xd->pmd == VNET_DPDK_PMD_BOND)
1445 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1448 vnet_hw_interface_t *bhi;
1449 ethernet_interface_t *bei;
1452 /* Get MAC of 1st slave link */
1454 (slink[0], (struct ether_addr *) addr);
1456 /* Set MAC of bounded interface to that of 1st slave link */
1457 clib_warning ("Set MAC for bond port %d BondEthernet%d",
1459 rv = rte_eth_bond_mac_address_set
1460 (i, (struct ether_addr *) addr);
1462 clib_warning ("Set MAC addr failure rv=%d", rv);
1464 /* Populate MAC of bonded interface in VPP hw tables */
1465 bhi = vnet_get_hw_interface
1466 (vnm, dm->devices[i].hw_if_index);
1467 bei = pool_elt_at_index
1468 (em->interfaces, bhi->hw_instance);
1469 clib_memcpy (bhi->hw_address, addr, 6);
1470 clib_memcpy (bei->address, addr, 6);
1472 /* Init l3 packet size allowed on bonded interface */
1473 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1474 bhi->max_l3_packet_bytes[VLIB_RX] =
1475 bhi->max_l3_packet_bytes[VLIB_TX] =
1476 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1478 { /* for all slave links */
1479 int slave = slink[--nlink];
1480 dpdk_device_t *sdev = &dm->devices[slave];
1481 vnet_hw_interface_t *shi;
1482 vnet_sw_interface_t *ssi;
1483 ethernet_interface_t *sei;
1484 /* Add MAC to all slave links except the first one */
1487 clib_warning ("Add MAC for slave port %d", slave);
1488 rv = rte_eth_dev_mac_addr_add
1489 (slave, (struct ether_addr *) addr, 0);
1491 clib_warning ("Add MAC addr failure rv=%d", rv);
1493 /* Setup slave link state change callback handling */
1494 rte_eth_dev_callback_register
1495 (slave, RTE_ETH_EVENT_INTR_LSC,
1496 dpdk_port_state_callback, NULL);
1497 dpdk_device_t *sxd = &dm->devices[slave];
1498 sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
1500 /* Set slaves bitmap for bonded interface */
1501 bhi->bond_info = clib_bitmap_set
1502 (bhi->bond_info, sdev->hw_if_index, 1);
1503 /* Set MACs and slave link flags on slave interface */
1504 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1505 ssi = vnet_get_sw_interface
1506 (vnm, sdev->vlib_sw_if_index);
1507 sei = pool_elt_at_index
1508 (em->interfaces, shi->hw_instance);
1509 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1510 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1511 clib_memcpy (shi->hw_address, addr, 6);
1512 clib_memcpy (sei->address, addr, 6);
1513 /* Set l3 packet size allowed as the lowest of slave */
1514 if (bhi->max_l3_packet_bytes[VLIB_RX] >
1515 shi->max_l3_packet_bytes[VLIB_RX])
1516 bhi->max_l3_packet_bytes[VLIB_RX] =
1517 bhi->max_l3_packet_bytes[VLIB_TX] =
1518 shi->max_l3_packet_bytes[VLIB_RX];
1519 /* Set max packet size allowed as the lowest of slave */
1520 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1521 bhi->max_packet_bytes = shi->max_packet_bytes;
1532 * check each time through the loop in case intervals are changed
1534 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1535 dm->link_state_poll_interval : dm->stat_poll_interval;
1537 vlib_process_wait_for_event_or_clock (vm, min_wait);
1539 if (dm->admin_up_down_in_progress)
1540 /* skip the poll if an admin up down is in progress (on any interface) */
1543 vec_foreach (xd, dm->devices)
1545 f64 now = vlib_time_now (vm);
1546 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1547 dpdk_update_counters (xd, now);
1548 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1549 dpdk_update_link_state (xd, now);
1558 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1559 .function = dpdk_process,
1560 .type = VLIB_NODE_TYPE_PROCESS,
1561 .name = "dpdk-process",
1562 .process_log2_n_stack_bytes = 17,
1566 static clib_error_t *
1567 dpdk_init (vlib_main_t * vm)
1569 dpdk_main_t *dm = &dpdk_main;
1571 clib_error_t *error = 0;
1572 vlib_thread_main_t *tm = vlib_get_thread_main ();
1574 /* verify that structs are cacheline aligned */
1575 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1576 "Cache line marker must be 1st element in dpdk_device_t");
1577 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1578 CLIB_CACHE_LINE_BYTES,
1579 "Data in cache line 0 is bigger than cache line size");
1580 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1581 "Cache line marker must be 1st element in frame_queue_trace_t");
1584 dm->vnet_main = vnet_get_main ();
1585 dm->conf = &dpdk_config_main;
1587 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1589 return clib_error_return (0, "ethernet-input node AWOL");
1591 dm->ethernet_input_node_index = ei->index;
1593 dm->conf->nchannels = 4;
1594 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1595 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1597 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1599 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1600 dm->buffer_flags_template =
1601 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID
1602 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1603 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1605 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1606 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1609 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1615 VLIB_INIT_FUNCTION (dpdk_init);
1619 * fd.io coding-style-patch-verification: ON
1622 * eval: (c-set-style "gnu")